The book is about student militancy in secondary schools in Kenya, focusing on a sociological analysis of its manifestation, causes and consequences. The findings of this study are as culmination of a detailed study carried out in Kenya by the researcher between 2007 and 2011 whose main objective was to provide a scientific understanding of student militancy in the country. Data was collected from a sample of secondary school students and other stakeholders in the schools and regions sampled. Several instruments were employed to collect the data which was then both statistically analysed and mainly qualitatively interpreted. The book reveals that student militancy is a social phenomenon common in many Kenyan secondary schools although its nature and magnitude varied across the geographical locations.